Astrology
Origin
Brazil, Kenya, Madagascar, Southern and central Africa
Australia
Color
Brown, Black
Yellow, Green, Blue
Streak
White
Not Available
For which Rashi?
Capricorn, Sagittarius
Not Available
Planet
Saturn
Not Available
Element of Planets
Earth
Not Available
Energy
Receptive
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Nerthus
Not Available
Not to wear with
Not Available
Not Available
Powers
Protection
Not Available
Birthstone
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
1.98-2.25
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Cleavage
{0110} Indistinct
Not Available
Mohs Hardness
7
5-6.5
Chemical Composition
SiO2
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Optical Properties
Luster
Vitreous
Not Available
Pleochroism
None
AbsentWalter Schumann
Dispersion
0.01
27
None
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.544-1.553
1.370-1.470
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Not Available
Birefringence
0.009
Not Available
Clarity
Opaque
Transparent
Benefits
Physical
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
